Home / 5,274.20-7,278.37-3,150.70

Finding the Fourth Proportional to 5,274.20, 7,278.37 and 3,150.70

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Solution

The fourth proportional to 5,274.20, 7,278.37 and 3,150.70 is: 4,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.20 : 7,278.37 = 3,150.70 : x
  2. Step 2: Convert to fraction form
    5,274.20/7,278.37 = 3,150.70/x
  3. Step 3: Cross multiply
    5,274.20x = 7,278.37 × 3,150.70
  4. Step 4: Simplify right side
    5,274.20x = 22,931,934.29
  5. Step 5: Solve for x
    x = 22,931,934.29/5,274.20
  6. Step 6: Final answer
    x = 4,347.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.